private Comparable getIndexedValue(LeftTuple leftTuple) {
return (Comparable)
index
.getDeclaration()
.getExtractor()
.getValue(leftTuple.get(index.getDeclaration()).getObject());
}
private Comparable getIndexedValue(RightTuple rightTuple) {
return (Comparable) index.getExtractor().getValue(rightTuple.getFactHandle().getObject());
}